In heterogeneous catalysis, the catalyst is in a different phase from the reactants. name: 4,5-Dichloro-3(2H)-pyridazinone, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 932-22-9, name is 4,5-Dichloro-3(2H)-pyridazinone. In an article，Which mentioned a new discovery about 932-22-9
The invention relates to a oxadiazole compound and its preparation method, the compound of the formula as follows: wherein R1is halogen, hydrogen, 1 – 4 carbon atoms or alkoxy, R2is halogen, hydrogen or alkyl, R3is methylamine, dimethylamine, isopropylamine, propylamine, butylamine, morpholine, piperidine or imidazole. Compared with the prior art, the process of the invention the procedure is simple, wide application range, suitable for use in the health pests such as flies, mosquitoes, flea and a drop shape and agricultural pests aqueous phase armor, Spodoptera exigua, insects and other pests on, can inhibit the growth of the mosquitoes for insect in particular, is a kind of have application prospect of insecticide. (by machine translation)
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2255 – PubChem